CN108633327A - IMS urgent calls for roaming UE - Google Patents

IMS urgent calls for roaming UE Download PDF

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Publication number
CN108633327A
CN108633327A CN201580078546.1A CN201580078546A CN108633327A CN 108633327 A CN108633327 A CN 108633327A CN 201580078546 A CN201580078546 A CN 201580078546A CN 108633327 A CN108633327 A CN 108633327A
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sip
cscf
identifiers
transceiver
uri
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CN108633327B (en
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F.林德霍尔姆
R.科勒
S.弗南德兹阿龙索
I.塞德拉赛克
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Telefonaktiebolaget LM Ericsson AB
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Telefonaktiebolaget LM Ericsson AB
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4557—Directories for hybrid networks, e.g. including telephone numbers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1069—Session establishment or de-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1073—Registration or de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1101—Session protocols
    • H04L65/1104—Session initiation protocol [SIP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/50—Connection management for emergency connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/08—Upper layer protocols
    • H04W80/10—Upper layer protocols adapted for application session management, e.g. SIP [Session Initiation Protocol]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/30—Types of network names
    • H04L2101/33—Types of network names containing protocol addresses or telephone numbers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/30—Types of network names
    • H04L2101/385—Uniform resource identifier for session initiation protocol [SIP URI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/618—Details of network addresses
    • H04L2101/65—Telephone numbers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/618—Details of network addresses
    • H04L2101/654—International mobile subscriber identity [IMSI] numbers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1045—Proxies, e.g. for session initiation protocol [SIP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
    • H04M3/51—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing
    • H04M3/5116—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing for emergency applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/60—Context-dependent security
    • H04W12/69—Identity-dependent
    • H04W12/72—Subscriber identity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20—Transfer of user or subscriber data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/02—Inter-networking arrangements

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Public Health (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

A kind of method in Proxy Call Session Control Function P CSCF, this method dispose the unverified urgent call for originating from the roaming user equipment UE for being not attached to P CSCF.P CSCF receive SIP from UE and invite request, and invitation request is related to unverified urgent call, and determines the IP address of UE.P CSCF send ID inquiring, the IP address of ID inquiring instruction UE and the other identifiers for asking UE to "Policy and Charging Rules Function PCRF；And one or more other identifiers of UE are received from PCRF.P CSCF are configured to TEL the and/or SIP uniform resource identifier URI of UE on the basis of at least one other identifiers, and URI, which is inserted into SIP, to be invited in request, and invites request to be sent to public safety answering point PSAP SIP.Additionally provide the corresponding method of the urgent call in the other node and for certification and the device for realizing these methods.

Description

IMS urgent calls for roaming UE
Technical field
The present invention relates to the urgent calls in the network for enabling IP multimedia subsystem IMS.Specifically, the present invention relates to The method and apparatus of the urgent call of UE for allowing to roam on network.
Background technology
In the context of cellular radio network, unverified mobile urgent call is that network does not assert that the urgent of subscriber identity is exhaled It cries.To public safety answering point（PSAP）That is the calling of emergency centers（The number of wherein subscriber is invisible）Also can be considered as not recognizing The mobile urgent call of card.Such unverified calling is permitted, to allow to carry out urgent call, although normal telephone service pair Particular user terminal is unavailable.It is unverified calling can for example be happened at user have effectively subscribe but his operator not with The case where Roaming agreements for the operator that family is being stationed.Example can be, when user is in the competition of only his operator When person is had in covered region, or when user just travels abroad.
In contrast, the urgent call of certification is the identity of network verification and the associated subscribers of UE（Or multiple identity）And The calling of asserted identity is indicated to PSAP.The calling of certification is preferably as they allow PSAP operators to disconnect Calling party in the case of connection, and identify the people for carrying out prank calls.
It illustrates by Sweden, the quantity about 700000 of unverified urgent call in 2000 is contributed to from mobile network's 18% or so of all urgent calls.In this 700000 unverified calling, only 1.5% is carried out about actual emergency. The possibility for carrying out unverified calling has encouraged prank calls, because caller can in fact keep anonymous.In some countries （Including Britain）, network operator has prohibited the unverified calling on mobile network, to attempt to reduce prank calls Quantity.Certainly, this prevents user to be carried out under rare cases those of when only unverified terminal is available effective urgent again Calling.
Current IMS Roaming standards allow user to be for example connected to the IMS of their home network in foreign country, are not necessarily to ownership PLMN（HPLMN）With visited PLMN（VPLMN）Between SIP interconnection.It is roamed when executing IMS in the case where no SIP is interconnected When, UE is attached to radio net（Such as E-UTRAN）And packet core network（Such as EPC）, and use the P-GW with HPLMN IMS PDN connections carry out IMS audio calls, without reference to any IMS entities of VPLMN.However, if roaming UE wish into Row IMS urgent calls, then this must be route via VPLMN.At this point, going wrong.Must be before the IMS urgent calls of certification To the successful IMS Emmergency log-ons of VPLMN.However, due to there is no SIP interconnection, the P- of VPLMN between HPLMN and VPLMN IMS Emmergency log-ons cannot be routed to the IMS core network of HPLMN by CSCF, and is had no right to access to VPLMN itself and registered UE institutes The data needed.
Therefore, the UE roamed on the network not interconnected with the SIP of the home network of UE can not be authenticated tight It calls on urgently and cries.As explained above, the urgent call of certification is preferred relative to unverified urgent call, and some PSAP refusals receive unverified urgent call.Therefore, this is potential serious problems.
Invention content
According to an aspect of the present invention, a kind of method in Proxy Call Session Control Function P-CSCF, the party are provided Method disposes the unverified urgent call for originating from the roaming user equipment UE for being not attached to P-CSCF.P-CSCF receives SIP from UE Request is invited, invitation request is related to unverified urgent call, and determines the IP address of UE.P-CSCF to strategy and charging Rule functional PCRF sends ID inquiring, the IP address of ID inquiring instruction UE and the other identifiers for asking UE；And from PCRF receives one or more other identifiers of UE.P-CSCF constructs use on the basis of at least one other identifiers In TEL the and/or SIP uniform resource identifier URI of UE, TEL and/or SIP URI are inserted into SIP and are invited in request, and to It public safety answering point PSAP and sends SIP invitation requests.
According to other aspect, a kind of method in Proxy Call Session Control Function P-CSCF, this method are provided Disposition originates from the Emmergency log-on for the roaming user equipment UE for being not attached to P-CSCF.P-CSCF receives Session initiation Protocol from UE SIP registration is asked, and the registration request is related to Emmergency log-on, and determines the IP address of UE.P-CSCF is advised to strategy and charging Then function PCRF sends ID inquiring, and the IP address of ID inquiring instruction UE simultaneously asks other identifiers of UE, and from PCRF Receive one or more other identifiers of UE.P-CSCF is obtained on the basis of at least one other identifier for UE's TEL and/or SIP uniform resource identifiers URI；And come to send 200 OK responses, 200 OK to UE in response to SIP registration request Response includes TEL and/or SIP URI.
According to another aspect, a kind of "Policy and Charging Rules Function that operation is called for disposing urgent IMS is provided The method of PCRF.PCRF receives identity request from Proxy Call Session Control Function P-CSCF, which includes that user sets The IP address of UE, is mapped to one or more identifiers of UE by the IP address of standby UE, and to P-CSCF send it is described its Its identifier.
According to another aspect, a kind of method for disposing the IMS urgent calls in roaming user equipment UE is provided.UE to by The Proxy Call Session Control Function P-CSCF for visiting PLMN sends and is asked with the relevant SIP registration of Emmergency log-on, and from P-CSCF Receive errored response.Then UE sends to invite with the relevant SIP of unverified IMS urgent calls to P-CSCF and ask.
According to another aspect, a kind of device being configured to operate as P-CSCF is provided.Device includes first transceiver, Two transceivers, third transceiver and unverified urgent call processor.First transceiver is configured to and roaming UE communication.Second receives Hair device is configured to communicate with PCRF.Third transceiver is configured to communicate with PSAP.Unverified urgent call processor is configured to：
It receives to invite with the relevant Session initiation Protocol SIP of unverified urgent call from UE via first transceiver and ask；
Determine the IP address of UE；
Via second transceiver ID inquiring, the IP address of ID inquiring instruction UE and the other marks for asking UE are sent to PCRF Know symbol；
One or more other identifiers of UE are received from PCRF via second transceiver；
TEL the and/or SIP uniform resource identifiers URI of UE is configured on the basis of at least one other identifier；
TEL and/or SIP URI are inserted into SIP to invite in request；
The 2nd SIP is sent towards PSAP invite request via third transceiver.
According to another aspect, a kind of device being configured to operate as P-CSCF is provided.Device includes first transceiver, Two transceivers and Emmergency log-on request processor.First transceiver is configured to and roaming UE communication.Second transceiver be configured to PCRF is communicated.Emmergency log-on request processor is configured to：
It receives from UE via first transceiver and is asked with the relevant Session initiation Protocol SIP registration of Emmergency log-on；
Determine the IP address of UE；
Via second transceiver ID inquiring, the IP address of ID inquiring instruction UE and the other marks for asking UE are sent to PCRF Know symbol；
One or more other identifiers of UE are received from PCRF via second transceiver；
TEL the and/or SIP uniform resource identifiers URI for UE is obtained on the basis of at least one other identifier；
In response to SIP registration ask, via second transceiver to UE send 200 OK response, 200 OK response comprising TEL and/ Or SIP URI.
According to another aspect, a kind of device being configured to operate as PCRF is provided.Device includes that transceiver and identity are asked Seek processor.Transceiver is configured to communicate with P-CSCF.Identity request processor is configured to：
Identity request is received from P-CSCF via transceiver, which includes the IP address of user equipment (UE)；
The IP address of UE is mapped to one or more other identifiers of UE；
Via transceiver other identifiers are sent to the P-CSCF.
According to another aspect, a kind of device being configured to operate as UE is provided.Device includes transceiver and urgent call Processor.Transceiver is configured to communicate with the IMS network including P-CSCF, and wherein UE is just roamed in the IMS network.Promptly exhale Processor is made to be configured to：
It sends to P-CSCF via transceiver and is asked with the relevant SIP registration of Emmergency log-on；
Via transceiver errored response is received from P-CSCF；
It sends to invite with the relevant SIP of unverified urgent call to P-CSCF via transceiver and ask.
According to last aspect, a kind of computer program including computer-readable code is provided, the code is worked as Make a kind of method of device execution above when being run on device.
The other embodiment of the present invention defines in the dependent claims.
Description of the drawings
Fig. 1 is the signaling diagram according to an embodiment；
Fig. 2 is signaling diagram according to another embodiment；
Fig. 3 is signaling diagram according to yet another embodiment；
Fig. 4 is the flow chart for the method for operating P-CSCF；
Fig. 5 is the flow chart for the alternative approach for operating P-CSCF；
Fig. 6 is the flow chart for the method for operating PCRF；
Fig. 7 is the flow chart for the method for operating UE；
Fig. 8 is the schematic diagram of P-CSCF；
Fig. 9 is the schematic diagram of alternative P-CSCF；
Figure 10 is the schematic diagram of PCRF；And
Figure 11 is the schematic diagram of UE.
Specific implementation mode
In order to provide the identity for the roaming UE for carrying out urgent call to the PSAP interconnected there is no the SIP of the HPLMN with UE, Proposed below is use the IP address of UE fully to identify UE the method for the IMS urgent calls of certification occurs.These methods Each of can trust the IP address of UE dependent on network, and therefore can be by using such as in WO2013/091735 Disclosed in IP address verification regulation improve.
Although these methods are intended for use between HPLMN and VPLMN the case where there is no SIP interconnection, it will be recognized that They may also be used in the case where being interconnected there are such SIP, such as the conduct in the case of communication failure with the node of HPLMN The rollback of conventional method.
First method is shown in FIG. 1.The method is related to the case where UE attempts to carry out unverified IMS urgent calls.
UE sends SIP to P-CSCF and invites（SIP INVITE）.SIP, which is invited, is used for unverified IMS urgent calls（For example, Contain SOS URN in recipient's field）.P-CSCF retrieves the IP address of UE from SIP invitations（It is asked for example, carrying SIP The source IP for the IP groupings asked）.Then PCSCF sends AAA requests to PCRF, including IP address, indicates the request and urgent call Correlation, and ask other identity of UE.
PCRF sends resource allocation request to PGW（RAR）, resource is reserved for urgent call, and resource is sent to PCRF Distribute response（RAA）.PCRF searches other identity of UE using the IP address of UE, such as to the IP-CAN UE's registered IMSI, IMEI and MSISDN.These identity are included in the AAA responses to P-CSCF by PCRF.
P-CSCF creates TEL the and/or SIP URI for UE using the identity received.Establishment will be described in further detail below The process of SIP URI.Then P-CSCF sends SIP to E-CSCF and invites, will be added to " the identity that P is asserted for the URI of UE （P-asserted-identity）" in field, and to provide the asserted identity of subscriber in UE.E-CSCF then proceedes to locate Urgent call is set, as in Current standards.
In this way, being provided to PSAP can be used to contact TEL the and/or SIP URI of UE, or even unverified in UE progress In the case of IMS urgent calls.
In the case, UE carries out unverified urgent call rather than the urgent call of certification is almost without disadvantage, and Therefore, UE can be configured by the trial to fail when carrying out unverified urgent call immediately come to Emmergency log-on and respond.When The errored response sent by P-CSCF when registration failure may indicate that UE should be done so.
The signaling of second method is shown in FIG. 2.The method is related to UE execution Emmergency log-ons so as to the IMS being authenticated The case where urgent call.
UE sends SIP registration to P-CSCF（SIP REGISTER）Request, indicates that it is Emmergency log-on.P-CSCF determinations do not have There is home network to can be used for UE, there is no SIP interconnection because it knows the HPLMN for UE, or in the HPLMN of contact UE After S-CSCF failures.P-CSCF retrieves the IP address of UE from SIP registration（The IP of request is invited to be grouped for example, carrying SIP Source IP）.Then PCSCF sends AAA requests to PCRF, including IP address, indicates that the request is related to urgent call, and ask UE Other identity.
PCRF using UE IP address search UE other identity, such as to IP-CAN register UE IMSI, IMEI and MSISDN.These identity are included in the AAA responses to P-CSCF by PCRF.
P-CSCF creates TEL the and/or SIP URI for UE using the identity of reception.Wound will be described in further detail below Build the process of URI.P-CSCF is included in the associated URI of P for the 200 OK responses for being sent to UE in response to SIP registration and by URI （P-Associated-URI）In field.
In order to make this method work, UE must receive 200 OK response, without receiving 410 responses, this 410 response to It will be carried out before 200 OK responses under normal circumstances when IMS registration.In addition, UE should receive 200 OK responses, and should not It seeks certification P-CSCF or sets up ipsec security association, because the two regulations are required for the data possessed in HPLMN.It gives This fixed regulation is used only in emergency, it is contemplated that lacks safety in this case and is acceptable.
Once 200 OK responses have been received in UE, it can carry out urgent call just to IMS registration, such as current In standard like that（Only because not setting up ipsec security association, signaling will not be encrypted under that association）.
The signaling of the third method is shown in FIG. 3.The third method is similar to second method, only in VPLMN E-CSCF or S-CSCF execute registration, rather than in P-CSCF.After constructing TEL and/or SIP URI, P-CSCF is to E/ S-CSCF sends SIP registration request, and includes TEL the and/or SIP URI for UE（Such as IMSI, IMEI and MSISDN）. E/S-CSCF sends 200 OK message via P-CSCF to UE, and wherein P-Associated-URI fields contain receives from P-CSCF URI.Alternatively, P-CSCF can send SIP registration request, and E- in the forward direction E-CSCF of construction TEL and/or SIP URI CSCF will return to 200 OK message, not need any user identity in P-Associated-URI fields.P-CSCF and then structure TEL and/or SIP URI are made, and before sending 200 OK responses to UE, TEL and/or SIP URI, which are inserted into 200 OK, to be rung In the P-Associated-URI fields answered.As in addition alternatively, P-CSCF can provide UE in SIP registration message to E-CSCF Other identity, and E-CSCF can construct TEL and/or SIP URI, and be inserted into and be sent to UE's via P-CSCF In the P-Associated-URI fields of 200 OK responses.Identity depending on the UE received from PCRF can be in various manners UE constructs effective TEL or SIP URI.
As the first option, if the MSISDN and IMSI of UE is available, MNC and MCC codes can be extracted from IMSI, and MSISDN can be converted into the whole world E.164 number.This can be used to construct " [E.164]@ims.mnc [MNC] .mcc [MCC] .3gppnetwork.org " the SIP URI for UE of form.For example, if MSISDN is 12125551212, and IMSI It is 234150999999999, then SIP URI will be sip:+12125551212@ ims.mnc015.mcc234.3gppnetwork.org;user=phone。
As the second option, if the MSISDN and IMSI of UE is available, MNC and MCC codes can be extracted from IMSI, and MSISDN can be converted into the whole world E.164 number.The mapping table that P-CSCF and then energy use have been applied to P-CSCF before comes MNC and MCC codes are mapped in domain name, and E.164 number and the domain name form SIP URI using the whole world.For example, if MSISDN is that 12125551212, IMSI is 234150999999999, and mapping table is for mnc==015 and mcc that==234 contains There is " ims.HPLMNoperator.com ", then SIP URI will be sip:+12125551212@ ims.HPLMNoperator.com;user=phone。
As third option, if only IMSI is available, P-CSCF can create the interim IMPU, such as 3GPP of UE based on IMSI As described in 23.003 v 13.1.0 subclauses 13.4B of TS.Interim IMPU is to use " [IMSI]@ims.mnc [MNC] .mcc the SIP URI of [MCC] .3gppnetwork.org " forms construction.For example, if IMSI is 234150999999999, Interim IMPU will be sip:234150999999999@ims.mnc015.mcc234.3gppnetwork.org.
TEL URI can be constructed directly according to MSISDN.
Each of these options provide a kind of identity, and PSAP can use the identity to construct UE（If necessary Words）, and for given above second and third method, be enough that UE is allowed to be attached to P-CSCF.
Fig. 4 is the flow chart for the method for showing operation P-CSCF.P-CSCF is received from UE（S101）It is promptly exhaled with unverified Relevant SIP is made to invite request.Then P-CSCF is determined（S102）The IP address of UE, and sent to PCRF（S103）Identity is looked into It askes, ID inquiring instruction IP address and the other identifiers for asking UE.P-CSCF is received from P-CSCF（S104）One or more More identifiers, and constructed on the basis of at least one identifier（S105）TEL and/or SIP URI for UE.P-CSCF is right URI is inserted into afterwards（S106）It invites in request to SIP, and is sent to PSAP（S106）SIP invites request.
Fig. 5 is the flow chart for the method for showing operation P-CSCF.P-CSCF is received from UE（S201）It is related to Emmergency log-on SIP registration request.P-CSCF is determined（S202）The IP address of UE, and sent to PCRF（S203）ID inquiring, the identity Inquiry instruction IP address and the other identifiers for asking UE.P-CSCF is received from PCRF（S204）One or more identifiers, and It is obtained on the basis of at least one identifier（S205）TEL and/or SIP URI.Then P-CSCF is sent to UE（S206）200 OK is responded, including TEL the and/or SIP URI for UE.
Fig. 6 is the flow chart for the method for showing to operate the PCRF for disposing urgent IMS callings.PCRF is received from P-CSCF （S301）The identity request of IP address including UE.PCRF maps the IP address of UE（S302）To the one or more other of UE Identifier, and other identifiers are sent（S303）To P-CSCF.
Fig. 7 is the flow chart for the method for showing operation UE.SIP registration is asked to send by UE（S401）To the P- of visited PLMN CSCF.In response, UE is received from P-CSCF（S402）Errored response.Then UE is sent to P-CSCF（S403）With it is unverified The relevant SIP of IMS urgent calls invites request.
It is P-CSCF that Fig. 8, which is arranged to operation,（100）Device schematic diagram.Device includes first transceiver（101）, Two transceivers（102）, third transceiver（103）With unverified urgent call processor（104）.First transceiver（101）Configuration At with roaming UE communication.Second transceiver（102）It is configured to communicate with PCRF.Third transceiver（103）It is configured to logical with PSAP Letter.Unverified urgent call processor（104）It is configured to：
It receives to invite with the relevant Session initiation Protocol SIP of unverified urgent call from UE via first transceiver and ask；
Determine the IP address of UE；
Via second transceiver ID inquiring, the IP address of ID inquiring instruction UE and the other marks for asking UE are sent to PCRF Know symbol；
One or more other identifiers of UE are received from PCRF via second transceiver；
TEL the and/or SIP uniform resource identifiers URI of UE is configured on the basis of at least one other identifier；
URI is inserted into SIP to invite in request；
The 2nd SIP is sent to PSAP invite request via third transceiver.
It is P-CSCF that Fig. 9, which is arranged to operation,（200）Device schematic diagram.Device includes first transceiver（201）, Two transceivers（202）With Emmergency log-on request processor（203）.First transceiver（201）It is configured to and roaming UE communication.Second Transceiver（202）It is configured to communicate with PCRF.Emmergency log-on request processor（203）It is configured to：
It receives from UE via first transceiver and is asked with the relevant Session initiation Protocol SIP registration of Emmergency log-on；
Determine the IP address of UE；
Via second transceiver ID inquiring, the IP address of ID inquiring instruction UE and the other marks for asking UE are sent to PCRF Know symbol；
One or more other identifiers of UE are received from PCRF via second transceiver；
TEL the and/or SIP uniform resource identifiers URI for UE is obtained on the basis of at least one other identifier；
It is asked in response to SIP registration and sends 200 OK responses to UE via second transceiver, 200 OK responses include URI.
It is PCRF that Figure 10, which is arranged to operation,（300）Device schematic diagram.Device includes transceiver（301）With promptly ask Seek processor（302）.Transceiver（301）It is configured to communicate with P-CSCF.Identity request processor（302）It is configured to：
Identity request is received from P-CSCF via transceiver, which includes the IP address of user equipment (UE)；
The IP address of UE is mapped to one or more other identifiers of UE；
Via transceiver other identifiers are sent to P-CSCF.
It is UE that Figure 11, which is arranged to operation,（400）Device schematic diagram.Device includes transceiver（401）And urgent call Processor（402）.Transceiver（401）It is configured to communicate with the IMS network including P-CSCF, wherein UE is overflow just in IMS network Trip.Urgent call processor（402）It is configured to：
It sends to P-CSCF via transceiver and is asked with the relevant SIP registration of Emmergency log-on；
Via transceiver errored response is received from P-CSCF；
It sends to invite with the relevant SIP of unverified urgent call to P-CSCF via transceiver and ask.
Method described above can be realized by computer program, so that device is held when the computer program is run on device Row this method.
Although describing the present invention in terms of having been described above illustrated preferred embodiment, it is to be understood that these are implemented Example is merely illustrative, and claim is not limited to these embodiments.Those skilled in the art will do in view of the disclosure Go out modification with alternatively, they are considered to fall into the scope of the appended claims.Disclose in the present specification or illustration it is every A feature can be all combined in the present invention, either alone or using any other feature with disclosed herein or illustration Any combination appropriate.

Claims (22)

1. a kind of method in Proxy Call Session Control Function P-CSCF, the method disposition, which originates from, is not attached to the P- The unverified urgent call of the roaming user equipment UE of CSCF, the method includes：
Receiving SIP from the UE invites request, the invitation request related to the unverified urgent call；
Determine the IP address of the UE；
ID inquiring is sent to "Policy and Charging Rules Function PCRF, the ID inquiring indicates the IP address of the UE simultaneously Ask other identifiers of the UE；
One or more other identifiers of the UE are received from the PCRF；
TEL the and/or SIP uniform resource identifiers of the UE are configured on the basis of at least one other identifiers URI；
TEL the and/or SIP URI are inserted into the SIP to invite in request；
The SIP, which is sent, towards public safety answering point PSAP invites request.
2. the method as described in claim 1, wherein the identifier received is IMSI, and the step of constructing the SIP URI Interim IMPU is constructed including being based on the IMSI.
3. the method as described in claim 1 wherein the identifier received is IMSI and MSISDN, and constructs the SIP The step of URI includes：
MNC and MCC codes are extracted from the IMSI；And
From the MSISDN and MNC and MCC codes construction SIP URI.
4. method as claimed in claim 3, wherein constructing SIP URI packets from the MSISDN and MNC the and MCC codes It includes：
The MSISDN is converted into the whole world E.164 number；
Construct the SIP URI of following form：
“[E.164 number]@ims.mnc[MNC].mcc[MCC].3gppnetwork.org”。
5. method as claimed in claim 3, wherein constructing SIP URI packets from the MSISDN and MNC the and MCC codes It includes：
The MNC and MCC are mapped to domain name using the mapping table in the P-CSCF；
The MSISDN is converted into the whole world E.164 number；
From the whole world, E.164 number and domain name construct SIP URI.
6. the method as described in claim 1, wherein the identifier received is IMSI, and the step of constructing the SIP URI Including：
If the identifier of another reception is MSISDN, the SIP URI are constructed according to any one of claim 3-5, Otherwise the SIP URI are constructed according to claim 2.
7. the method as described in any one of claim 1-6 constructs the TEL wherein the identifier received is MSISDN The step of URI includes constructing the TEL URI from the MSISDN.
8. the method as described in any one of claim 1-7, wherein determining that the IP address of the UE includes that determination contains There is the source IP address that the IP that the SIP is invited is grouped.
9. the method as described in any one of claim 1-8, and include：The UE is received in packet core from the PCRF The instruction being certified in the heart.
10. a kind of method in Proxy Call Session Control Function P-CSCF, the method disposition originate from be not attached to it is described The Emmergency log-on of the roaming user equipment UE of P-CSCF, the method includes：
The request of Session initiation Protocol SIP registration is received from the UE, the registration request is related to the Emmergency log-on；
Determine the IP address of the UE；
ID inquiring is sent to "Policy and Charging Rules Function PCRF, the ID inquiring indicates the IP address of the UE and request Other identifiers of the UE；
One or more other identifiers of the UE are received from the PCRF；
TEL the and/or SIP uniform resource identifiers for the UE are obtained on the basis of at least one other identifiers URI；
It is asked in response to the SIP registration and sends 200 OK responses to the UE, the 200 OK responses include the TEL And/or SIP URI.
11. method as claimed in claim 10, wherein it includes to emergency call session control to obtain TEL the and/or SIP URL Function E-CSCF processed sends the request of the second SIP registration, and the second SIP registration request identifies the UE and containing at least one Other identifiers；And receive 200 OK responses from the E-CSCF, 200 OK response comprising the TEL and/or SIP URI。
12. method as claimed in claim 10, wherein obtain TEL the and/or SIP URI be included in it is described it is at least one its The SIP URI are constructed on the basis of its identifier.
13. method as claimed in claim 12, and include：By the SIP registration request be modified as comprising the TEL and/ Or SIP URI, send SIP registration request to the E-CSCF, and from the E-CSCF receive comprising the TEL and/ Or 200 OK responses of SIP URI.
14. a kind of method of "Policy and Charging Rules Function of operation for disposing urgent IMS callings, the method includes：
From Proxy Call Session Control Function P-CSCF receive identity request, the identity request includes the IP of user equipment (UE) Location；And
The IP address of the UE is mapped to one or more other identifiers of the UE；
Other identifiers are sent to the P-CSCF.
15. method as claimed in claim 14, and include：
Determine the UE by block core mandate；
Instructions of the UE by the block core mandate is provided to the P-CSCF.
16. the method as described in claims 14 or 15, wherein the identifier is IMSI and/or MSISDN.
17. a kind of method of the IMS urgent calls in disposition roaming user equipment UE, the method includes：
It sends to the Proxy Call Session Control Function P-CSCF of visited PLMN and is asked with the relevant SIP registration of Emmergency log-on；
Errored response is received from the P-CSCF；
It sends to invite with the relevant SIP of unverified IMS urgent calls to the P-CSCF and ask.
18. a kind of device being configured to operate as Proxy Call Session Control Function P-CSCF, described device include：
First transceiver is configured to and roaming user equipment UE communication；
Second transceiver is configured to communicate with "Policy and Charging Rules Function PCRF；
Third transceiver is configured to communicate with public safety answering point PSAP；
Unverified urgent call processor, is configured to：
It receives from the UE via the first transceiver and is asked with the relevant Session initiation Protocol SIP of unverified urgent call It asks；
Determine the IP address of the UE；
ID inquiring is sent to the PCRF via the second transceiver, the ID inquiring is with indicating the IP of the UE Location and the other identifiers for asking the UE；
One or more other identifiers of the UE are received from the PCRF via the second transceiver；
TEL the and/or SIP uniform resource identifiers of the UE are configured on the basis of at least one other identifiers URI；
TEL the and/or SIP URI are inserted into the SIP to invite in request；
The SIP is sent towards public safety answering point PSAP invite request via the third transceiver.
19. a kind of device being configured to operate as Proxy Call Session Control Function P-CSCF, described device include：
First transceiver is configured to and roaming user equipment UE communication；
Second transceiver is configured to communicate with "Policy and Charging Rules Function PCRF；
Emmergency log-on request processor, is configured to：
It receives from the UE via the first transceiver and is asked with the relevant Session initiation Protocol SIP registration of Emmergency log-on；
Determine the IP address of the UE；
ID inquiring is sent to the PCRF via the second transceiver, the ID inquiring is with indicating the IP of the UE Location and the other identifiers for asking the UE；
One or more other identifiers of the UE are received from the PCRF via the second transceiver；
TEL the and/or SIP uniform resource identifiers for the UE are obtained on the basis of at least one other identifiers URI；
It is asked in response to the SIP registration and sends 200 OK to the UE via the second transceiver and respond, described 200 OK responses include TEL the and/or SIP URI.
20. a kind of device being configured to operate as "Policy and Charging Rules Function PCRF, described device include：
Transceiver is configured to communicate with Proxy Call Session Control Function P-CSCF；
Identity request processor, is configured to：
Identity request is received from the P-CSCF via the transceiver, the identity request includes the IP of user equipment (UE) Location；
The IP address of the UE is mapped to one or more other identifiers of the UE；
Via the transceiver other identifiers are sent to the P-CSCF.
21. a kind of device being configured to operate as user equipment (UE), described device include：
Transceiver is configured to communicate with the IP multimedia subsystem IMS network including Proxy Call Session Control Function P-CSCF, The wherein described UE is roamed in the IMS network；
Urgent call processor, is configured to：
It sends to the P-CSCF via the transceiver and is asked with the relevant SIP registration of Emmergency log-on；
Errored response is received from the P-CSCF；
It sends to invite with the relevant SIP of unverified urgent call to the P-CSCF via the transceiver and ask.
22. a kind of computer program, including computer-readable code, the code makes described device hold when being run on device Method of the row as described in any one of claim 1-17.
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Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016208768A1 (en) * 2015-06-26 2016-12-29 日本電気株式会社 Communication device, terminal, and communication method
US11025676B2 (en) * 2015-06-30 2021-06-01 Nec Corporation Communication system
EP3758327B1 (en) * 2015-08-07 2023-05-10 Apple Inc. Ims emergency call routing techniques
US10349256B2 (en) * 2015-08-19 2019-07-09 Lg Electronics Inc. Method for requesting emergency service by roaming UE and method for processing same
EP3261375B1 (en) * 2016-06-21 2023-07-26 Nokia Solutions and Networks Oy Access to local services by unauthenticated users
US9838991B1 (en) 2016-08-15 2017-12-05 At&T Intellectual Property I, L.P. Method and apparatus for managing mobile subscriber identification information according to registration requests
US9967732B2 (en) 2016-08-15 2018-05-08 At&T Intellectual Property I, L.P. Method and apparatus for managing mobile subscriber identification information according to registration errors
US9924347B1 (en) * 2016-09-14 2018-03-20 At&T Intellectual Property I, L.P. Method and apparatus for reassigning mobile subscriber identification information
US9794905B1 (en) 2016-09-14 2017-10-17 At&T Mobility Ii Llc Method and apparatus for assigning mobile subscriber identification information to multiple devices according to location
US10015764B2 (en) 2016-09-14 2018-07-03 At&T Intellectual Property I, L.P. Method and apparatus for assigning mobile subscriber identification information to multiple devices
US9843922B1 (en) * 2016-09-14 2017-12-12 At&T Intellectual Property I, L.P. Method and apparatus for utilizing mobile subscriber identification information with multiple devices based on registration errors
US9814010B1 (en) 2016-09-14 2017-11-07 At&T Intellectual Property I, L.P. Method and apparatus for utilizing mobile subscriber identification information with multiple devices based on registration requests
US9906943B1 (en) 2016-09-29 2018-02-27 At&T Intellectual Property I, L.P. Method and apparatus for provisioning mobile subscriber identification information to multiple devices and provisioning network elements
US9918220B1 (en) 2016-10-17 2018-03-13 At&T Intellectual Property I, L.P. Method and apparatus for managing and reusing mobile subscriber identification information to multiple devices
US10070303B2 (en) 2016-11-11 2018-09-04 At&T Intellectual Property I, L.P. Method and apparatus for provisioning of multiple devices with mobile subscriber identification information
GB2556906A (en) 2016-11-24 2018-06-13 Trustonic Ltd Handset identifier verification
US10136305B2 (en) 2016-12-01 2018-11-20 At&T Intellectual Property I, L.P. Method and apparatus for using mobile subscriber identification information for multiple device profiles for a device
US10070407B2 (en) 2016-12-01 2018-09-04 At&T Intellectual Property I, L.P. Method and apparatus for using active and inactive mobile subscriber identification information in a device to provide services for a limited time period
US10341842B2 (en) 2016-12-01 2019-07-02 At&T Intellectual Property I, L.P. Method and apparatus for using temporary mobile subscriber identification information in a device to provide services for a limited time period
US10231204B2 (en) 2016-12-05 2019-03-12 At&T Intellectual Property I, L.P. Methods, systems, and devices for registering a communication device utilizing a virtual network
FR3067558A1 (en) * 2017-06-14 2018-12-14 Orange METHOD FOR CONFIGURING A TERMINAL
US10993282B2 (en) * 2017-08-09 2021-04-27 Lenovo (Singapore) Pte. Ltd. Method and apparatus for short code dialing for restricted services for unauthenticated user equipment
GB2590098B (en) * 2019-07-25 2022-01-26 Samsung Electronics Co Ltd Improvements in and relating to disaster inbound roamers in a telecommunication network
WO2021211023A1 (en) * 2020-04-14 2021-10-21 Telefonaktiebolaget Lm Ericsson (Publ) Shared reference for a charging data resource for pdu sessions in communications system
CN116963001A (en) * 2022-04-13 2023-10-27 中国电信股份有限公司 Calling method, system and P-CSCF network element

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080008157A1 (en) * 2006-07-06 2008-01-10 Edge Stephen W Method And Apparatus For Parallel Registration And Call Establishment
CN101296504A (en) * 2007-04-26 2008-10-29 华为技术有限公司 Method, system and device for implementing IP multimedia subsystem service in roaming network
CN101448242A (en) * 2008-03-14 2009-06-03 中兴通讯股份有限公司 Finding method of proxy call session control function module and policy charging control system
WO2008117165A3 (en) * 2007-03-28 2009-08-13 Nokia Corp Methods, apparatuses and computer program product for forwarding emergency registration request to a home network
CN102124713A (en) * 2008-08-18 2011-07-13 艾利森电话股份有限公司 Technique for emergency session handling in a communication network
WO2013151484A1 (en) * 2012-04-03 2013-10-10 Telefonaktiebolaget L M Ericsson (Publ) Call -back to a ue that has made an emergency call via a visited ims network
US20130279406A1 (en) * 2012-04-24 2013-10-24 Telefonaktiebolaget Lm Ericsson (Publ) Policy and charging control methods
US20140376414A1 (en) * 2005-08-02 2014-12-25 Qualcomm Incorporated Voip emergency call support

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7899174B1 (en) * 2003-06-26 2011-03-01 Nortel Networks Limited Emergency services for packet networks
US8532606B2 (en) * 2005-10-07 2013-09-10 Lg Electronics Inc. Method and system for providing an emergency location service using interoperability between IMS core and access network
US8085757B2 (en) * 2005-11-07 2011-12-27 At&T Intellectual Property I, L.P. Caller-controlled routing to non-SIP/non-TEL URI destinations for an IMS-based ENUM query
CN100596084C (en) * 2006-04-20 2010-03-24 华为技术有限公司 Method for accessing IMS network to mobile circuit domain user and its registering method
US8340626B2 (en) 2006-04-28 2012-12-25 Qualcomm Incorporated System and method for supporting voice call continuity for VOIP emergency calls
CN101242406A (en) * 2007-02-08 2008-08-13 华为技术有限公司 Transmission method, device and network system for emergent service call
US9871872B2 (en) 2007-04-13 2018-01-16 Nokia Technologies Oy Mechanism for executing server discovery
US7668159B2 (en) * 2007-04-25 2010-02-23 Research In Motion Limited Methods and apparatus for obtaining variable call parameters suitable for use in originating a SIP call via a circuit-switched network from a user equipment device
CN101466083B (en) 2007-12-18 2010-12-08 华为技术有限公司 Emergency call method and apparatus
US9113334B2 (en) * 2008-02-01 2015-08-18 Tekelec, Inc. Methods, systems, and computer readable media for controlling access to voice resources in mobile networks using mobility management signaling messages
US9967132B2 (en) * 2008-04-08 2018-05-08 Nokia Solutions And Networks Oy Correlating communication sessions
US20090262703A1 (en) * 2008-04-18 2009-10-22 Amit Khetawat Method and Apparatus for Encapsulation of RANAP Messages in a Home Node B System
US20110216763A1 (en) 2008-09-03 2011-09-08 Johan Wahl Tel URI Handling Methods and Apparatus
JP2010130396A (en) 2008-11-28 2010-06-10 Hitachi Ltd Management system
US9332041B2 (en) 2009-03-24 2016-05-03 Blackberry Limited System and method for providing a circuit switched domain number
EP2478684B1 (en) * 2009-09-18 2018-11-07 Deutsche Telekom AG Method for supporting a user equipment lacking globally routable user agent uri - gruu support in an internet protocol multimedia subsystem - ims.
WO2012046100A1 (en) * 2010-10-05 2012-04-12 Nokia Corporation Single radio voice call continuity for emergency callback or click-to-dial sessions
US9426711B2 (en) 2011-05-26 2016-08-23 Telefonaktiebolaget Lm Ericsson (Publ) Traffic control within an IP multimedia subsystem
EP2737747A1 (en) 2011-07-29 2014-06-04 Telefonaktiebolaget LM Ericsson (PUBL) Methods and apparatuses for enabling an single radio voice call continuity (srvcc) access transfer of an emergency call back session
US8744428B2 (en) 2011-10-18 2014-06-03 Alcatel Lucent Supported feature override
KR20130048561A (en) 2011-11-02 2013-05-10 삼성전자주식회사 Method and system for transmitting media preference of emergency call in mobile communication system
EP2795946B1 (en) 2011-12-23 2015-10-14 Telefonaktiebolaget L M Ericsson (PUBL) Methods and apparatuses for determining a user identity token for identifying user of a communication network
WO2013097193A1 (en) * 2011-12-30 2013-07-04 华为技术有限公司 Method, device and system for determining policy and charging enforcement function
EP2807857B1 (en) * 2012-01-27 2017-06-28 Telefonaktiebolaget LM Ericsson (publ) Handover of emergency calls from a circuit switched to a packet switched access network
US9503885B2 (en) * 2012-04-03 2016-11-22 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatus for providing a subscriber identity
US9055350B2 (en) * 2012-11-16 2015-06-09 At&T Intellectual Property I, Lp Method and apparatus for communicating emergency information
US9380549B2 (en) * 2014-03-27 2016-06-28 Apple Inc. Cellular network assisted proximity services registration procedures and event framework for proximity requests/alerts using session initiation protocol
US20160014586A1 (en) * 2014-07-11 2016-01-14 Qualcomm Incorporated Vehicular small cell data transport and emergency services
US9681282B2 (en) * 2014-10-08 2017-06-13 Qualcomm Incorporated Techniques for supporting telematics-enhanced emergency calls from mobile phones
KR102027260B1 (en) * 2014-11-14 2019-10-01 노키아 솔루션스 앤드 네트웍스 오와이 Ims emergency session handling
WO2016091328A1 (en) * 2014-12-12 2016-06-16 Telefonaktiebolaget Lm Ericsson (Publ) Configuration technique for an emergency session

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140376414A1 (en) * 2005-08-02 2014-12-25 Qualcomm Incorporated Voip emergency call support
US20080008157A1 (en) * 2006-07-06 2008-01-10 Edge Stephen W Method And Apparatus For Parallel Registration And Call Establishment
WO2008117165A3 (en) * 2007-03-28 2009-08-13 Nokia Corp Methods, apparatuses and computer program product for forwarding emergency registration request to a home network
CN101296504A (en) * 2007-04-26 2008-10-29 华为技术有限公司 Method, system and device for implementing IP multimedia subsystem service in roaming network
CN101448242A (en) * 2008-03-14 2009-06-03 中兴通讯股份有限公司 Finding method of proxy call session control function module and policy charging control system
CN102124713A (en) * 2008-08-18 2011-07-13 艾利森电话股份有限公司 Technique for emergency session handling in a communication network
WO2013151484A1 (en) * 2012-04-03 2013-10-10 Telefonaktiebolaget L M Ericsson (Publ) Call -back to a ue that has made an emergency call via a visited ims network
US20130279406A1 (en) * 2012-04-24 2013-10-24 Telefonaktiebolaget Lm Ericsson (Publ) Policy and charging control methods

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NOKIA NETWORK: "IP multimedia subsystem(IMS) emergency session", 《3GPP TS 23.167 V12.1.0 》 *

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